145023400 has 48 divisors (see below), whose sum is σ = 337997340. Its totient is φ = 57868800.

The previous prime is 145023397. The next prime is 145023407. The reversal of 145023400 is 4320541.

145023400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 58644964 + 86378436 = 7658^2 + 9294^2 .

It is not an unprimeable number, because it can be changed into a prime (145023407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131652 + ... + 132748.

Almost surely, 2^145023400 is an apocalyptic number.

145023400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145023400 is an abundant number, since it is smaller than the sum of its proper divisors (192973940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145023400 is a wasteful number, since it uses less digits than its factorization.

145023400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 145023400 is about 12042.5661717094. The cubic root of 145023400 is about 525.3870464088.

Adding to 145023400 its reverse (4320541), we get a palindrome (149343941).

The spelling of 145023400 in words is "one hundred forty-five million, twenty-three thousand, four hundred".